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BOSTON MARATHON 2025

Weihua Chen

Bib: 9534•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 33%
Gender (Male)
#0 / 16105
Top 46%
Masters (Masters Men)
#0 / 10463
Top 34%
Division (M55-59)
#0 / 1648
Top 16%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:26
Rank: #4414
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
41:40
Rank: #5430 (-1016)
5K → 10K
21:14 | 6:50/mi
15K· 9.32 mi
1:03:30
Rank: #6323 (-893)
10K → 15K
21:50 | 7:02/mi
20K· 12.43 mi
1:27:05
Rank: #7550 (-1227)
15K → 20K
23:35 | 7:35/mi
Half· 13.11 mi
1:32:11
Rank: #7692 (-142)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:51:08
Rank: #8325 (-633)
Half → 25K
18:57 | 7:49/mi
30K· 18.64 mi
2:15:42
Rank: #8669 (-344)
25K → 30K
24:34 | 7:54/mi
20M
2:27:35
Rank: #9218 (-549)
30K → 20M
11:53 | 8:45/mi
21M
2:38:10
Rank: #10103 (-885)
20M → 21M
10:35 | 10:35/mi
35K· 21.75 mi
2:43:37
Rank: #9933 (+170)
21M → 35K
5:27 | 7:17/mi
23M
2:53:01
Rank: #9694 (+239)
35K → 23M
9:24 | 7:30/mi
24M
3:00:18
Rank: #9471 (+223)
23M → 24M
7:17 | 7:17/mi
40K· 24.85 mi
3:06:44
Rank: #9351 (+120)
24M → 40K
6:26 | 7:31/mi
25.2M
3:09:39
Rank: #9310 (+41)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:17:18
Rank: #9299 (+11)
25.2M → Finish
7:39 | 7:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:11
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:45:07
Pace8:01 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:3720:266:3520:26
6:35
-
10K
6.21 mi11:06:5141:406:4221:14
6:50
+0:15
15K
9.32 mi11:28:411:03:306:4921:50
7:02
+0:12
20K
12.43 mi11:52:161:27:057:0023:35
7:35
+0:33
Half
13.11 mi11:57:221:32:117:025:06
7:29
-0:06
25K
15.53 mi12:16:191:51:087:0918:57
7:49
+0:20
30K
18.64 mi12:40:532:15:427:1724:34
7:54
+0:05
20M
20.00 mi12:52:462:27:357:2311:53
8:45
+0:51
21M
21.00 mi13:03:212:38:107:3210:35
10:35
+1:50
35K
21.75 mi13:08:482:43:377:315:27
7:17
-3:18
23M
23.00 mi13:18:122:53:017:319:24
7:30
+0:13
24M
24.00 mi13:25:293:00:187:317:17
7:17
-0:13
40K
24.85 mi13:31:553:06:447:316:26
7:31
+0:14
25.2M
25.20 mi13:34:503:09:397:322:55
8:27
+0:56
Finish
26.22 mi13:42:293:17:187:327:39
7:30
-0:57

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:35 /mi

Average Pace

7:32 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:30

32% of race

Time at Steady Pace

1:48:25

55% of race

Time at Slower Pace

25:23

13% of race

Average Pace: 7:31 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:45:3720:266:3520:26
6:35
#4414
10K
6.21 mi11:06:5141:406:4221:14
6:50
#5430
15K
9.32 mi11:28:411:03:306:4921:50
7:02
#6323
20K
12.43 mi11:52:161:27:057:0023:35
7:35
#7550
Half
13.11 mi11:57:221:32:117:025:06
7:29
#7692
25K
15.53 mi12:16:191:51:087:0918:57
7:49
#8325
30K
18.64 mi12:40:532:15:427:1724:34
7:54
#8669
20M
20.00 mi12:52:462:27:357:2311:53
8:45
#9218
21M
21.00 mi13:03:212:38:107:3210:35
10:35
#10103
35K
21.75 mi13:08:482:43:377:315:27
7:17
#9933
23M
23.00 mi13:18:122:53:017:319:24
7:30
#9694
24M
24.00 mi13:25:293:00:187:317:17
7:17
#9471
40K
24.85 mi13:31:553:06:447:316:26
7:31
#9351
25.2M
25.20 mi13:34:503:09:397:322:55
8:27
#9310
Finish
26.22 mi13:42:293:17:187:327:39
7:30
#9299
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi4414415141517809(Top 27%)6817(Top 42%)6817(Top 414%)
10K6.21 mi3.10 mi5430-10165029-8785029-8786741(Top 24%)6079(Top 38%)6079(Top 369%)
15K9.32 mi3.11 mi6323-8935768-7395768-7397809(Top 27%)6817(Top 42%)6817(Top 414%)
20K12.43 mi3.11 mi7550-12276667-8996667-89911495(Top 40%)8725(Top 54%)8725(Top 529%)
Half13.11 mi0.68 mi7692-1426758-916758-9111424(Top 40%)8734(Top 54%)8734(Top 530%)
25K15.53 mi2.42 mi8325-6337126-3687126-36812464(Top 44%)9053(Top 56%)9053(Top 549%)
30K18.64 mi3.11 mi8669-3447286-1607286-16010675(Top 38%)8009(Top 50%)8009(Top 486%)
20M20.00 mi1.36 mi9218-5497563-2777563-27715312(Top 54%)10048(Top 62%)10048(Top 610%)
21M21.00 mi1.00 mi10103-8857987-4247987-42420245(Top 71%)12142(Top 75%)12142(Top 737%)
35K21.75 mi0.75 mi9933+1707879+1087879+1087142(Top 25%)5794(Top 36%)5794(Top 352%)
23M23.00 mi1.25 mi9694+2397718+1617718+1616665(Top 23%)5406(Top 34%)5406(Top 328%)
24M24.00 mi1.00 mi9471+2237560+1587560+1586320(Top 22%)5120(Top 32%)5120(Top 311%)
40K24.85 mi0.85 mi9351+1207463+977463+976940(Top 24%)5395(Top 33%)5395(Top 327%)
25.2M25.20 mi0.35 mi9310+417420+437420+438519(Top 30%)6204(Top 39%)6204(Top 376%)
Finish26.22 mi1.02 mi9299+117381+397381+399223(Top 32%)6568(Top 41%)6568(Top 399%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7809

Males

6817

M55-59

6817

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6741

Males

6079

M55-59

6079

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7809

Males

6817

M55-59

6817

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

11495

Males

8725

M55-59

8725

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

11424

Males

8734

M55-59

8734

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

12464

Males

9053

M55-59

9053

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10675

Males

8009

M55-59

8009

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15312

Males

10048

M55-59

10048

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20245

Males

12142

M55-59

12142

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7142

Males

5794

M55-59

5794

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6665

Males

5406

M55-59

5406

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

6320

Males

5120

M55-59

5120

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6940

Males

5395

M55-59

5395

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8519

Males

6204

M55-59

6204

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9223

Males

6568

M55-59

6568

Passing Analysis

Category:
Athletes Passed
1140
Passed By
6023
Net Change
-4885
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4414
5K → 10K151031-1016#4414#5430
10K → 15K20913-893#5430#6323
15K → 20K91236-1227#6323#7550
20K → Half5147-142#7550#7692
Half → 25K21654-633#7692#8325
25K → 30K116460-344#8325#8669
30K → 20M25574-549#8669#9218
20M → 21M8891-885#9218#10103
21M → 35K1766+170#10103#9933
35K → 23M2445+239#9933#9694
23M → 24M2318+223#9694#9471
24M → 40K13515+120#9471#9351
40K → 25.2M5817+41#9351#9310
25.2M → Finish7766+11#9310#9299
TOTALS11406023-4885
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing